This resolution, S. RES. 3, formally elects Senator Charles E. Grassley of Iowa to serve as the President pro tempore of the United States Senate . The President pro tempore is a high-ranking official in the Senate, typically the most senior senator of the majority party, who presides over the Senate in the absence of the Vice President. Submitted by Senator Thune, the resolution was considered and agreed to by the Senate on January 3, 2025. This action confirms Senator Grassley's selection for this important constitutional role, signifying his leadership and seniority within the chamber.